Blar i Journal articles (peer reviewed) på forfatter "Lien, Gudbrand"
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Are diversification and structural change good policy? An empirical analysis of Norwegian agriculture
Alem, Habtamu; Lien, Gudbrand; Kumbhakar, Subal Chandra; Hardaker, J. Brian (Journal article; Peer reviewed, 2018)We investigated whether diversification and/or structural change would improve Norwegian agriculture. Using a flexible technology approach to account for different technologies, we assessed economies of scope and scale of ... -
Endogeneity, heterogeneity, and determinants of inefficiency in Norwegian crop-producing farms
Lien, Gudbrand; Kumbhakar, Subal Chandra; Alem, Habtamu (Journal article; Peer reviewed, 2018)This paper addresses the endogeneity of inputs and output (which is mostly ignored in the stochastic frontier (SF) literature) in the SF panel data model under the behavioural assumption that firms maximize returns to the ... -
Impacts of infectious disease outbreaks on firm performance and risk: The forest industries during the COVID-19 pandemic
Størdal, Ståle; Lien, Gudbrand; Trømborg, Erik (Peer reviewed; Journal article, 2021) -
Regional differences in technical efficiency and technological gap of Norwegian dairy farms: a stochastic meta-frontier model
Alem, Habtamu; Lien, Gudbrand; Hardaker, J. Brian; Guttormsen, Atle (Journal article; Peer reviewed, 2018)This paper compares technical efficiencies (TEs) and technological gap ratios (TGRs) for dairy farms in regions of Norway, accounting for differences in working environments. We used the state-of-the-art stochastic ... -
Regional differences in technical efficiency and technological gap of the Norwegian dairy farms: a stochastic meta-frontier model
Alem, Habtamu; Lien, Gudbrand; Hardaker, J. Brian; Guttormsen, Atle (Journal article; Peer reviewed, 2018)This paper compares technical efficiencies (TEs) and technological gap ratios (TGRs) for dairy farms in regions of Norway, accounting for differences in working environments. We used the state-of-the-art stochastic ... -
Sample frequency robustness and accuracy in forecasting Value-at-Risk for Brent Crude Oil futures
Ewald, Christian Oliver; Hadina, Jelena; Haugom, Erik; Lien, Gudbrand; Størdal, Ståle; Yahya, Muhammad (Journal article; Peer reviewed, 2023)In this paper we examine how sensitive Value-at-Risk (VaR) forecasts based on simple linear quantile regressions are to the sampling frequency used to calculate realized volatility. We use sampling frequencies from one to ... -
Sample frequency robustness and accuracy in forecasting Value-at-Risk for Brent Crude Oil futures
Ewald, Christian Oliver; Hadina, Jelena; Haugom, Erik; Lien, Gudbrand; Størdal, Ståle; Yahya, Muhammad (Peer reviewed; Journal article, 2023)